Chernobyl exclusion zone
The Chernobyl Nuclear Power Plant Zone of Alienation, also called the 30-Kilometre Zone or simply The Zone, was established shortly after the 1986 Chernobyl disaster in the Ukrainian SSR of the Soviet Union. Initially, Soviet authorities declared an exclusion zone spanning a 30-kilometre (19 mi) radius around the Chernobyl Nuclear Power Plant, designating the area for evacuations and placing it under military control.